:host {
  > x-container:not(first-child) {
    margin-top: 1rem;
  }
  x-header,
  x-footer {
    line-height: 3rem;
    text-align: center;
  }
  x-header {
    background-color: var(--x-info-200);
  }
  x-footer {
    background-color: var(--x-info-300);
  }
  x-main {
    line-height: 12rem;
    text-align: center;
    background-color: var(--x-info-400);
  }
  x-aside {
    line-height: 14rem;
    text-align: center;
    background-color: var(--x-info-500);
  }
}
